Trease, G. E., & By Evans , W. C. (1971). Pharmacognosy (10th ed.). Bailliere Tindall.
Čikaški stil citiranja (17. izdanje)Trease, George Edward, i William Charles By Evans. Pharmacognosy. 10th ed. London: Bailliere Tindall, 1971.
MLA način citiranja (9. izdanje)Trease, George Edward, i William Charles By Evans. Pharmacognosy. 10th ed. Bailliere Tindall, 1971.
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